"Triple-low" radiation dose bronchial artery CT angiography before bronchial artery embolisation: a feasibility study.
Clin Radiol
; 78(12): e1017-e1022, 2023 12.
Article
en En
| MEDLINE
| ID: mdl-37813755
ABSTRACT
AIM:
To explore the feasibility of a "triple-low" dose (low tube voltage, low tube current, and low contrast agent volume) bronchial artery computed tomography (CT) angiography (CTA) to replace routine dose bronchial artery CTA before bronchial artery embolisation (BAE). MATERIALS ANDMETHODS:
CTA was obtained from 60 patients with body mass index (BMI) < 30 kg/m2 using a 256 multi-section iCT system, and they were divided into two groups (1) group A 100 kVp, 100 mAs, 50 ml contrast medium (CM); (2) group B 120 kVp, automatic tube current modulation (ACTM), 80 ml CM. CT attenuation of the thoracic aorta, image noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated, and subjective image quality scores and traceability scores assessed. The effective radiation dose was calculated.RESULTS:
The radiation dose was reduced by 79.7% in group A compared to group B (p<0.05). The CT attenuation of the thoracic aorta was increased by approximately 13% in group A compared to group B (p<0.05). Higher image noise, lower SNR, and CNR were obtained in group A compared to group B (all p<0.05). Both subjective image quality scores and traceability scores did not differ between groups A and B (both p>0.05).CONCLUSION:
It is feasible to use the "triple-low" dose CTA protocol for patients with a body mass index (BMI) < 30 kg/m2. The radiation dose was reduced by 79.7%, and the dose of contrast medium was reduced by 37.5% to ensure the diagnostic value.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arterias Bronquiales
/
Angiografía por Tomografía Computarizada
Tipo de estudio:
Guideline
Límite:
Humans
Idioma:
En
Revista:
Clin Radiol
Año:
2023
Tipo del documento:
Article
País de afiliación:
China